Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. An anti-peeping assembly, comprising: a first substrate and a second substrate arranged facing each other; and a liquid crystal layer located between said first substrate and said second substrate; wherein, a first electrode is disposed on said first substrate at a side near the liquid crystal layer, and a plurality of second electrodes arranged as an array are disposed on said second substrate at a side near the liquid crystal layer; wherein a plurality of transmission electrodes arranged as an array are also disposed on said second substrate at the side near the liquid crystal layer, and said plurality of transmission electrodes and said plurality of second electrodes are staggered in the same layer; wherein liquid crystals between said first electrode and each second electrode of said plurality of second electrodes are polymer liquid crystals, and liquid crystals between said first electrode and each transmission electrode of said plurality of transmission electrodes are nematic phase liquid crystals; and wherein, in response to applying no voltage or a same voltage to said first electrode, the second electrodes and the transmission electrodes, liquid crystals between said first electrode and said second electrodes scatter light so that the anti-peeping assembly realizes anti-peeping, and in response to applying different voltages to said first electrode and said second electrodes, and applying a same voltage to the transmission electrodes and the first electrode, liquid crystals between said first electrode and said second electrodes transmit light so that the anti-peeping assembly realizes non-anti-peeping.
This invention relates to an anti-peeping assembly designed for display devices to prevent unauthorized viewing from oblique angles while maintaining normal visibility from a direct viewing angle. The assembly consists of two substrates facing each other with a liquid crystal layer sandwiched between them. The first substrate has a single electrode near the liquid crystal layer, while the second substrate has an array of second electrodes and an array of transmission electrodes in the same layer, arranged in a staggered pattern. The liquid crystals between the first electrode and the second electrodes are polymer liquid crystals, which scatter light when no voltage or the same voltage is applied to all electrodes, creating an anti-peeping effect by obscuring the display from side views. When different voltages are applied to the first and second electrodes while the transmission electrodes and the first electrode share the same voltage, the polymer liquid crystals align to allow light transmission, disabling the anti-peeping function. The nematic phase liquid crystals between the first electrode and the transmission electrodes ensure proper light modulation in both modes. This design enables dynamic switching between anti-peeping and non-anti-peeping states by controlling the applied voltages.
2. The anti-peeping assembly according to claim 1 , wherein said first electrode is any one of a plate electrode, a strip electrode and a block electrode; said second electrode is one of a strip electrode and a block electrode.
This invention relates to an anti-peeping assembly designed to prevent unauthorized viewing of private spaces, such as through windows or transparent surfaces. The assembly addresses the problem of visual privacy by using an electrochromic device that dynamically adjusts transparency in response to an applied voltage. The core component is a pair of electrodes that control the electrochromic material's opacity. The first electrode can be a plate, strip, or block electrode, while the second electrode is either a strip or block electrode. These electrodes are positioned to create an electric field that modulates the transparency of the electrochromic material, allowing it to switch between clear and opaque states. The design ensures uniform and controllable opacity changes, enhancing privacy when needed. The assembly is particularly useful in applications where quick, reversible privacy control is required, such as smart windows, privacy screens, or display panels. The electrode configurations optimize the electric field distribution, ensuring efficient and reliable operation of the electrochromic material.
3. The anti-peeping assembly according to claim 1 , wherein said transmission electrode has the same shape as said second electrode.
The invention relates to an anti-peeping assembly designed to prevent unauthorized viewing of a display screen, particularly in privacy-sensitive applications. The assembly addresses the problem of visual privacy by dynamically controlling the visibility of the display content to authorized users while obscuring it from unauthorized viewers at different angles. The assembly includes a transmission electrode and a second electrode, both of which are shaped identically to ensure uniform electrical interaction. The transmission electrode is configured to modulate light transmission through the display, allowing selective control over visibility. The second electrode works in conjunction with the transmission electrode to create an electric field that adjusts the transparency or opacity of the display based on the viewing angle. This ensures that only users within a specific angular range can see the content clearly, while others outside this range perceive a darkened or obscured view. The identical shapes of the electrodes optimize the efficiency and consistency of the electric field distribution, enhancing the overall privacy performance of the assembly. The invention is particularly useful in applications such as mobile devices, laptops, and digital signage where privacy protection is critical.
4. A method for controlling the anti-peeping assembly according to claim 1 , comprising: in response to the anti-peeping assembly being in an anti-peeping mode, applying no voltage or a same voltage to said first electrode, the second electrodes and the transmission electrodes, so that liquid crystals between said first electrode and each second electrode of said plurality of second electrodes scatter light; and in response to the anti-peeping assembly being in an non-anti-peeping mode, applying different voltages to said first electrode and said second electrodes, and applying a same voltage to the transmission electrodes a first electrode, so that liquid crystals between said first electrode and each second electrode of said plurality of second electrodes transmit light.
This invention relates to a method for controlling an anti-peeping assembly in a display system, addressing the need to prevent unauthorized viewing of displayed content while maintaining normal visibility when desired. The assembly includes a first electrode, multiple second electrodes, and transmission electrodes, along with liquid crystals positioned between the first electrode and the second electrodes. In anti-peeping mode, the method applies either no voltage or a uniform voltage to the first electrode, second electrodes, and transmission electrodes, causing the liquid crystals to scatter light and obscure the display. This prevents side viewing while allowing direct viewing. In non-anti-peeping mode, different voltages are applied to the first and second electrodes, while the transmission electrodes receive a uniform voltage, aligning the liquid crystals to transmit light and enable normal display visibility. The method dynamically switches between these modes to control privacy, ensuring secure content display when needed while maintaining standard operation otherwise. The approach leverages voltage control to manipulate liquid crystal alignment, providing an effective anti-peeping solution without additional mechanical components.
5. A display device, comprising a display panel and the anti-peeping assembly of claim 1 .
A display device includes a display panel and an anti-peeping assembly designed to restrict viewing angles and prevent unauthorized viewing of displayed content. The anti-peeping assembly incorporates a light control layer positioned in front of the display panel, which selectively blocks or redirects light based on viewing angles. This layer may include microstructures, such as prisms or light-absorbing elements, that limit visibility to a narrow range of angles while maintaining clear visibility for an intended viewer. The assembly may also feature adjustable mechanisms to dynamically alter the viewing angle restrictions, allowing users to switch between private and public viewing modes. Additionally, the anti-peeping assembly can integrate with sensors or user inputs to automatically adjust privacy settings based on environmental conditions or user preferences. The display device is particularly useful in public or shared spaces where confidentiality is required, such as in business settings, medical environments, or personal devices. The combination of the display panel and anti-peeping assembly ensures that sensitive information remains protected while maintaining optimal display quality for authorized viewers.
6. A method for manufacturing an anti-peeping assembly, comprising: providing a first substrate and a second substrate; forming a first electrode on said first substrate; forming a plurality of second electrodes arranged as an array on said second substrate; forming a plurality of transmission electrodes arranges as an array on said second substrate on which said plurality of second electrodes are formed, such that said plurality of transmission electrodes and said plurality of second electrodes are staggered in the same layer; arranging said first substrate to face said second substrate and disposing a liquid crystal layer between said first substrate and said second substrate, wherein, the first electrode is disposed on said first substrate at a side near the liquid crystal layer, and the plurality of second electrodes are disposed on said second substrate at a side near the liquid crystal layer; wherein liquid crystals between said first electrode and each second electrode of said plurality of second electrodes are polymer liquid crystals, and liquid crystals between said first electrode and each transmission electrodes of said plurality of transmission electrodes are nematic phase liquid crystals; wherein, in response to applying no voltage or a same voltage to said first electrode, the second electrodes and the transmission electrodes, liquid crystals between said first electrode and said second electrodes scatter light so that the anti-peeping assembly realizes anti-peeping, and in response to applying different voltages to said first electrode and said second electrodes, and applying a same voltage to the transmission electrodes and the first electrode, liquid crystals between said first electrode and said second electrodes transmit light so that the anti-peeping assembly realizes non-anti-peeping.
This invention relates to an anti-peeping assembly for display devices, addressing the need for privacy control in electronic displays. The assembly includes two substrates with a liquid crystal layer between them. The first substrate has a single electrode, while the second substrate has an array of second electrodes and an array of transmission electrodes in the same layer, arranged in a staggered pattern. The liquid crystal layer contains two types of liquid crystals: polymer liquid crystals between the first electrode and the second electrodes, and nematic phase liquid crystals between the first electrode and the transmission electrodes. When no voltage or the same voltage is applied to all electrodes, the polymer liquid crystals scatter light, preventing side viewing and ensuring privacy. When different voltages are applied to the first and second electrodes while the transmission electrodes and first electrode share the same voltage, the polymer liquid crystals allow light transmission, enabling normal viewing. This design allows the assembly to switch between anti-peeping and non-anti-peeping modes dynamically. The staggered arrangement of electrodes optimizes space and functionality, ensuring efficient light modulation for privacy control.
7. The method according to claim 6 , wherein arranging a liquid crystal layer between said first substrate and said second substrate comprises: arranging a liquid crystal layer between said first substrate and said second substrate by means of a microcavity perfusion technology.
This invention relates to liquid crystal display (LCD) technology, specifically addressing challenges in forming uniform and stable liquid crystal layers between substrates. The problem being solved involves ensuring proper alignment and filling of liquid crystal material within display panels, which is critical for achieving high-quality imaging performance. Traditional methods often struggle with air bubbles, uneven distribution, or alignment defects, leading to display imperfections. The invention describes a method for arranging a liquid crystal layer between two substrates using microcavity perfusion technology. This approach involves precisely controlling the flow and distribution of liquid crystal material into microcavities formed between the substrates. The microcavity perfusion technology ensures that the liquid crystal is uniformly infused into the designated spaces, minimizing defects and improving alignment. This method is particularly useful in advanced display manufacturing, where precision and consistency are essential for high-resolution and high-performance displays. The technology may also include additional steps such as sealing the substrates after the liquid crystal is properly arranged to maintain the integrity of the display panel. The result is a more reliable and efficient manufacturing process for LCDs, leading to better optical performance and reduced defects.
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October 13, 2020
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